Tag: bsnl 3g plan

Bharat Sanchar Nagar Limited (BSNL) has given a great gift to its customers. BSNL has said that its 2G/3G subscribers will easily upgrade to 4G for free. However, this offer is not always, but it is for 90 days only. Let’s know about the 4G SIM card… Let me first tell you that this offering…